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Per Wikipedia --One of the trickier aspects to spalting is that some fungi cannot colonize wood alone; they require other fungi to have preceded them to create favorable conditions. Fungi progress in waves of primary and secondary colonizers,[4] where primary colonizers initially capture and control resources, change the pH of the wood and its structure, and then must defend against secondary colonizers that then have the ability to colonize the substrate.[4][20]
4-Rayner, A.D.M., and Boddy, L. (1988). Fungal Decomposition of Wood. Its biology and Ecology. John Wiley and Sons: New York.

This observation is for the caterpillar, pulled out of this rudbeckia after a 9 minute excavation-hunt by this E. hidalgo. European Tube Wasp attempted to get in on the action, but was unsuccessful. Both wasps are subjects of their own observations.

Crustose lichen with yellow or greenish yellow thallus and orange apothecia growing in a slender crack on the surface of a gravestone.

This lichen is growing on the same face of the same gravestone as this:
https://www.inaturalist.org/observations/47510066

The right-most yellow lichen in the mortar zone in the wide-angle shot. It's growing in and just beyond the mortar zone, with calciphile Lecanora dispersa visible in the shot. Zoom shots thru 17x hand lens.